How to align many note with API?

use AlignHorz

follow code don't align many note

Private Sub del()

   Dim SwApp As SldWorks.SldWorks, SwModel As ModelDoc2

       Set SwApp = Application.SldWorks

       Set SwModel = SwApp.ActiveDoc

   Dim SwDraw As DrawingDoc

       Set SwDraw = SwModel

       Stop

       SwDraw.AlignHorz

      

End Sub

SolidworksApi macros